cnn legal contributor paul callan joins me now for more. have you ever heard of a case like this, paul? it's almost something you would expect to come out of hollywood. >> it sounds like a hollywood script. i was a homicide prosecutor here in new york, involved in serial killer cases. this is the scariest one i've ever seen. he is a trained, military guy, lieutenant in the navy. he is a trained police officer and he's holding off, literally, thousands of cops who are searching for him. so very, very dangerous, very scary situation. >> and i'm hoping that he turns himself in and there is no more violence. but if he were to be caught, what possible defense could he have? >> the thing i'm concerned about as far as lieutenant dorner is -- i call him lieutenant because he was a military man. he is facing the death penalty if he does not voluntarily surrender. obviously, he is familiar with the concept of suicide by cop, which is you fight the police with weapons. they're going to shoot you. that's what's going to happen to him at some point in t